<template>
  <div class="login-container">
    <el-form
      class="login-form"
      :model="loginForm"
      :rules="loginRules"
      ref="loginFromRef"
    >
      <div class="title-container">
        <h3 class="title">{{ $t('msg.login.title') }}</h3>
        <lang-select class="lang-select" effect="light"></lang-select>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <!-- 自己封装的icon组件 使用本地图标 -->
          <svg-icon icon="user" />
        </span>

        <!--  element-plus icon使用方法
        <span class="svg-container">
          <el-icon>
            <Avatar></Avatar>
          </el-icon>
        </span>
        -->
        <el-input
          placeholder="username"
          name="username"
          type="text"
          v-model="loginForm.username"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <!-- 自己封装的icon组件 使用外部图标 -->
          <svg-icon icon="password" />
        </span>
        <el-input
          placeholder="password"
          :type="passwordType"
          name="password"
          v-model="loginForm.password"
        />
        <span class="show-pwd">
          <svg-icon
            :icon="passwordType === 'password' ? 'eye' : 'eye-open'"
            @click="onChangePwdType"
          />
        </span>
      </el-form-item>

      <el-button
        type="primary"
        style="width: 100%; margin-bottom: 30px"
        :loading="loading "
        @click="handleLogin"
      >{{ $t('msg.login.loginBtn') }}</el-button
      >

      <div class="tips" v-html="$t('msg.login.desc')"></div>
    </el-form>
  </div>
</template>

<script setup>
import {ElMessage} from "element-plus";
import {useAppStore} from "@/store/app";
let appStore = useAppStore()

// circular imports
import { useUserStore } from '@/store/user.ts'

import { useRouter } from 'vue-router'
const router = useRouter()
const handleSetLanguage = (lang) => {
  i18n.locale.value = lang
  appStore.setLanguage(lang)
  ElMessage.success(i18n.t('msg.toast.switchLangSuccess'))
}

// 导入组件之后无需注册可直接使用
// import { Avatar } from '@element-plus/icons-vue'
import {ref, computed} from 'vue'
import {validatePassword} from './rules'
import {useI18n} from 'vue-i18n'
import {watchSwitchLang} from '@/utils/i18n'

// 数据源
const loginForm = ref({
  username: 'super-admin',
  password: '123456'
})
const i18n = useI18n()
// 验证规则
const loginRules = ref({
  username: [
    {
      required: true,
      trigger: 'blur',
      // message: i18n.t('msg.login.usernameRule')
      message: computed(() => {
        return i18n.t('msg.login.usernameRule')
      })
    }
  ],
  password: [
    {
      required: true,
      trigger: 'blur',
      validator: validatePassword()
    }
  ]
})

watchSwitchLang(() => {
  loginFromRef.value.validate()
})

// 密码是否显示
let passwordType = ref('password')
// 修改passwordType
let onChangePwdType = () => {
  if (passwordType.value == 'password') {
    passwordType.value = 'text'
  } else {
    passwordType.value = 'password'
  }
}

// 处理登录动作
let loading = ref(false)

let loginFromRef = ref(null)
let useStore = useUserStore()

const handleLogin = () => {
  // 校验是否符合form规则
  loginFromRef.value.validate((valid) => {
    if (!valid) return
    loading.value = true
    useStore.login(loginForm.value)
      .then((res) => {
        // TODO: 登录后操作
        router.push('/').then(() => {
          console.log('res', res)
          loading.value = false
        })
      })
      .catch((err) => {
        loading.value = false
        console.log('err', err)
      })
  })
}
</script>
<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
$cursor: #fff;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;

    :deep(.el-form-item) {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }

    :deep(.el-input) {
      display: inline-block;
      height: 47px;
      width: 85%;

      input {
        background: transparent;
        border: 0px;
        -webkit-appearance: none;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        color: $light_gray;
        height: 47px;
        caret-color: $cursor;
      }
    }
  }

  :deep(.el-input__wrapper) {
    background-color: transparent;
    box-shadow: 0 0 0 0px var(--el-input-border-color, var(--el-border-color)) inset;
  }

  .tips {
    font-size: 16px;
    line-height: 28px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }

    .lang-select {
      position: absolute;
      top: 4px;
      right: 0;
      background-color: white;
      font-size: 22px;
      padding: 4px;
      border-radius: 4px;
      cursor: pointer;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  :deep(.el-input__inner) {
    box-shadow: 0 0 0 0px var(--el-input-border-color, var(--el-border-color)) inset !important;
    cursor: default !important;

    &:hover,
    &:focus {
      box-shadow: 0 0 0 0px var(--el-input-border-color, var(--el-border-color)) inset !important;
    }
  }

  .el-select .el-input.is-focus .el-input__inner {
    box-shadow: 0 0 0 0px var(--el-select-input-focus-border-color) inset !important;
  }
}
</style>
